
package org.at.diary.user;

import android.content.ContentValues;
import android.content.Context;
import android.database.Cursor;
import android.database.SQLException;
import android.database.sqlite.SQLiteDatabase;
import android.database.sqlite.SQLiteOpenHelper;
import android.util.Log;

public class UserDatabaseAdapter {

    public static final String KEY_DIARYNAME = "diaryname";
    public static final String KEY_USERNAME = "username";
    public static final String KEY_PASSWORD = "password";
    public static final String KEY_FULLNAME = "fullname";
    public static final String KEY_BIRTHDAY = "birthday";
    public static final String KEY_ROWID = "_id";
    public static final String KEY_ADDRESS = "address";
    public static final String KEY_EMAIL= "email";
    

    private static final String TAG = "UserDatabaseAdapter";
    private DatabaseHelper userDbHelper;
    private SQLiteDatabase userDb;

    /**
     * Database creation sql statement
     */
    private static final String DATABASE_CREATE =
        "create table user (_id integer primary key autoincrement, "
        + "username text not null, password text not null, email text not null, diaryname text, fullname text, birthday text, address text);";

    private static final String DATABASE_NAME = "userdatabase";
    private static final String DATABASE_TABLE = "user";
    private static final int DATABASE_VERSION = 1;

    private final Context mCtx;

    private static class DatabaseHelper extends SQLiteOpenHelper {

        DatabaseHelper(Context context) {
            super(context, DATABASE_NAME, null, DATABASE_VERSION);
        }

        @Override
        public void onCreate(SQLiteDatabase db) {

            db.execSQL(DATABASE_CREATE);
        }

        @Override
        public void onUpgrade(SQLiteDatabase db, int oldVersion, int newVersion) {
            Log.w(TAG, "Upgrading database from version " + oldVersion + " to "
                    + newVersion + ", which will destroy all old data");
            db.execSQL("DROP TABLE IF EXISTS user");
            onCreate(db);
        }
        
        
    }

    /**
     * Constructor - takes the context to allow the database to be
     * opened/created
     * 
     * @param ctx the Context within which to work
     */
    public UserDatabaseAdapter(Context ctx) {
        this.mCtx = ctx;
    }

    /**
     * Open the notes database. If it cannot be opened, try to create a new
     * instance of the database. If it cannot be created, throw an exception to
     * signal the failure
     * 
     * @return this (self reference, allowing this to be chained in an
     *         initialization call)
     * @throws SQLException if the database could be neither opened or created
     */
    public UserDatabaseAdapter open() throws SQLException {
        userDbHelper = new DatabaseHelper(mCtx);
        userDb = userDbHelper.getWritableDatabase();
        return this;
    }

    public void close() {
        userDbHelper.close();
    }


    /**
     * Create a new note using the title and body provided. If the note is
     * successfully created return the new rowId for that note, otherwise return
     * a -1 to indicate failure.
     * 
     * @param title the title of the note
     * @param body the body of the note
     * @return rowId or -1 if failed
     */
    
    public long createUser(String username, String password, String email) {
        ContentValues initialValues = new ContentValues();
        initialValues.put(KEY_USERNAME, username);
        initialValues.put(KEY_PASSWORD, password);
        initialValues.put(KEY_EMAIL, email);
        return userDb.insert(DATABASE_TABLE, null, initialValues);
    }
    

    /**
     * Delete the note with the given rowId
     * 
     * @param rowId id of note to delete
     * @return true if deleted, false otherwise
     */
    public boolean deleteNote(long rowId) {

        return userDb.delete(DATABASE_TABLE, KEY_ROWID + "=" + rowId, null) > 0;
    }

    public void deleteAllNote(){
    	userDb.execSQL("DROP TABLE IF EXISTS user");
    }
    /**
     * Return a Cursor over the list of all notes in the database
     * 
     * @return Cursor over all notes
     */
    public Cursor fetchAllNotes() {

        return userDb.query(DATABASE_TABLE, new String[] {KEY_ROWID, KEY_USERNAME, KEY_PASSWORD, KEY_EMAIL, KEY_DIARYNAME, KEY_FULLNAME, KEY_BIRTHDAY, KEY_ADDRESS}, null, null, null, null, null);
    }

    /**
     * Return a Cursor positioned at the note that matches the given rowId
     * 
     * @param rowId id of note to retrieve
     * @return Cursor positioned to matching note, if found
     * @throws SQLException if note could not be found/retrieved
     */
    public Cursor fetchNote(long rowId) throws SQLException {

        Cursor mCursor =

            userDb.query(true, DATABASE_TABLE, new String[] {KEY_ROWID, KEY_USERNAME, KEY_PASSWORD, KEY_EMAIL, KEY_DIARYNAME, KEY_FULLNAME, KEY_BIRTHDAY, KEY_ADDRESS}, KEY_ROWID + "=" + rowId, null,
                    null, null, null, null);
        if (mCursor != null) {
            mCursor.moveToFirst();
        }
        return mCursor;

    }


    /**
     * Update the note using the details provided. The note to be updated is
     * specified using the rowId, and it is altered to use the title and body
     * values passed in
     * 
     * @param rowId id of note to update
     * @param title value to set note title to
     * @param body value to set note body to
     * @return true if the note was successfully updated, false otherwise
     */
    public boolean updateInforUser(long rowId, String diaryname, String fullname, String birthday, String address) {
        ContentValues args = new ContentValues();
        args.put(KEY_DIARYNAME, diaryname);
        args.put(KEY_FULLNAME, fullname);
        args.put(KEY_BIRTHDAY, birthday);
        args.put(KEY_ADDRESS, address);
        return userDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0;
    }
    public boolean changePasswordUser(long rowId, String password){
    	ContentValues args = new ContentValues();
    	args.put(KEY_PASSWORD, password);
    	return userDb.update(DATABASE_TABLE, args, KEY_ROWID + "=" + rowId, null) > 0;
    }
    
    
}
